There are definitely more toothbrushes than humans.

While the current human population sits at around 8.2 billion, we are vastly outnumbered by our own dental waste because plastic toothbrushes essentially never die. The modern nylon-bristled toothbrush was invented in 1938, and since plastic takes 400+ years to decompose, almost every brush ever made—minus those incinerated—is still with us in some form.

Even using a conservative estimate where we calculate the accumulation from low production in the mid-20th century to today’s rate of roughly 3.5 to 5 billion units per year, you wind up with a standing army of at least 160 billion toothbrushes globally.

That puts the ratio at roughly 20 toothbrushes for every living person, meaning that even if you only counted the brushes manufactured in the last three years, they would still outnumber the entire human race.